- #1
Yura
- 39
- 0
i need to find the expression for the vertical direction of a beam in a cathode ray tube, using:
Va - accelerating voltage (between cathode &anode)
Vd - deflecting voltage
ly - effective length of deflecting plates
L - distance from end of plates to the screen
d - distance between plates
Me - mass of electron
e - charge of electron
this is for a prac of mine so i need to work it out during the prac and show working and everything, but i would like to know what the expression looks like so i have a general idea of what I am doing and can see if i get something wrong.
thanks.
Va - accelerating voltage (between cathode &anode)
Vd - deflecting voltage
ly - effective length of deflecting plates
L - distance from end of plates to the screen
d - distance between plates
Me - mass of electron
e - charge of electron
this is for a prac of mine so i need to work it out during the prac and show working and everything, but i would like to know what the expression looks like so i have a general idea of what I am doing and can see if i get something wrong.
thanks.